Best-Offset Hardware Prefetching

Pierre Michaud 1, *
* Auteur correspondant
1 ALF - Amdahl's Law is Forever
Inria Rennes – Bretagne Atlantique , IRISA-D3 - ARCHITECTURE
Abstract : Hardware prefetching is an important feature of modern high-performance processors. When the application working set is too large to fit in on-chip caches, disabling hardware prefetchers may result in severe performance reduction. A new prefetcher was recently introduced, the Sandbox prefetcher, that tries to find dynamically the best prefetch offset using the sandbox method. The Sandbox prefetcher uses simple hardware and was shown to be quite effective. However, the sandbox method does not take into account prefetch timeliness. We propose an offset prefetcher with a new method for selecting the prefetch offset that takes into account prefetch timeliness. We show that our Best-Offset prefetcher outperforms the Sandbox prefetcher on the SPEC CPU2006 benchmarks , with equally simple hardware.
Type de document :
Communication dans un congrès
International Symposium on High-Performance Computer Architecture, Mar 2016, Barcelona, Spain. 〈10.1109/HPCA.2016.7446087〉
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Contributeur : Pierre Michaud <>
Soumis le : vendredi 13 janvier 2017 - 15:13:54
Dernière modification le : vendredi 16 novembre 2018 - 01:39:22
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Pierre Michaud. Best-Offset Hardware Prefetching. International Symposium on High-Performance Computer Architecture, Mar 2016, Barcelona, Spain. 〈10.1109/HPCA.2016.7446087〉. 〈hal-01254863〉

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